package org.example

import org.apache.spark.SparkConf
import org.apache.spark.streaming.{Seconds, StreamingContext}
import org.apache.spark.streaming.dstream.{DStream, ReceiverInputDStream}

object SparkStreamingData2_1 {
  def main(args: Array[String]): Unit = {

    val sparkConf = new SparkConf().setMaster("local[2]").setAppName("NetworkWordCount")
    //
    //   5秒统计一次

    val ssc = new StreamingContext(sparkConf, Seconds(5)) //
    //   监听并读取数据(一行行)

    //    val lines = ssc.socketTextStream("192.168.64.129", 9999)

    // 数据处理
    //1883
//        val dStream: ReceiverInputDStream[String] = ssc.socketTextStream("192.168.64.129", 9999)
//    val dStream: ReceiverInputDStream[String] = ssc.socketTextStream("172.16.104.21", 9999)
    val dStream: ReceiverInputDStream[String] = ssc.socketTextStream("192.168.220.1", 9999)

    val lines = dStream.flatMap(_.split(","))

    val wordDStream = lines.map((_, 1))

    val result = wordDStream.reduceByKey(_ + _)

    // 数据保存

    result.print()

    ssc.start()

    ssc.awaitTermination()

    ssc.stop()
  }
}
